CVE-2019-13723 : Security Advisory and Response

A vulnerability related to the use of WebBluetooth in versions of Google Chrome before 78.0.3904.108 enabled an attacker with control over the renderer process to exploit heap corruption using a specially crafted HTML page.

Understanding CVE-2019-13723

This CVE involves a use after free vulnerability in Google Chrome prior to version 78.0.3904.108, allowing a remote attacker to potentially exploit heap corruption.

What is CVE-2019-13723?

The vulnerability in WebBluetooth in Google Chrome versions before 78.0.3904.108 could be exploited by an attacker controlling the renderer process through a crafted HTML page.

The Impact of CVE-2019-13723

Severity: High
Attack Vector: Remote
Attack Complexity: Low
Privileges Required: None
User Interaction: Required

Technical Details of CVE-2019-13723

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows an attacker to exploit heap corruption by leveraging the use after free issue in WebBluetooth in Google Chrome.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 78.0.3904.108
Version Type: Custom

Exploitation Mechanism

The attacker needs to have control over the renderer process and use a specially crafted HTML page to trigger heap corruption.

Mitigation and Prevention

To address CVE-2019-13723, follow these mitigation strategies:

Immediate Steps to Take

Update Google Chrome to version 78.0.3904.108 or later.
Avoid clicking on suspicious links or visiting untrusted websites.
Implement strict content security policies to limit script execution.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Educate users on safe browsing habits and the importance of software updates.
Employ network monitoring and intrusion detection systems to detect unusual behavior.

Patching and Updates

Google released a patch in version 78.0.3904.108 to address this vulnerability.
Stay informed about security advisories and apply patches promptly.